ABAP Select data from SAP table CFDI_RESP_MX into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CFDI_RESP_MX table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to CFDI_RESP_MX. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the CFDI_RESP_MX table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_CFDI_RESP_MX TYPE STANDARD TABLE OF CFDI_RESP_MX,
      WA_CFDI_RESP_MX TYPE CFDI_RESP_MX,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <CFDI_RESP_MX> TYPE CFDI_RESP_MX.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CFDI_RESP_MX.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CFDI_RESP_MX
  INTO TABLE IT_CFDI_RESP_MX.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CFDI_RESP_MX
*  INTO TABLE @DATA(IT_CFDI_RESP_MX2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_CFDI_RESP_MX INDEX 1 INTO DATA(WA_CFDI_RESP_MX2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CFDI_RESP_MX ASSIGNING <CFDI_RESP_MX>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CFDI_RESP_MX>-MANDT = 1.
<CFDI_RESP_MX>-BUKRS = 1.
<CFDI_RESP_MX>-REFDOC = 1.
<CFDI_RESP_MX>-REFTYP = 1.
<CFDI_RESP_MX>-GJAHR = 1.

ENDLOOP.

LOOP AT IT_CFDI_RESP_MX INTO WA_CFDI_RESP_MX.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CFDI_RESP_MX-REFDOCDT, sy-vline,
  WA_CFDI_RESP_MX-STATUS, sy-vline,
  WA_CFDI_RESP_MX-CFDIRESPT, sy-vline,
  WA_CFDI_RESP_MX-REJCODE, sy-vline,
  WA_CFDI_RESP_MX-VERSION, sy-vline,
  WA_CFDI_RESP_MX-UUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CFDI_RESP_MX you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_CFDI_RESP_MX TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_CFDI_RESP_MX INTO WA_CFDI_RESP_MX.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CFDI_RESP_MX-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CFDI_RESP_MX-GJAHR.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CFDI_RESP_MX_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
REFDOC TYPE STRING,
REFTYP TYPE STRING,
GJAHR TYPE STRING,
REFDOCDT TYPE STRING,
STATUS TYPE STRING,
CFDIRESPT TYPE STRING,
REJCODE TYPE STRING,
VERSION TYPE STRING,
UUID TYPE STRING,
SAT_CERTNO TYPE STRING,
FECHA_A TYPE STRING,
CODESTATUS TYPE STRING,
ESTATUSUUID TYPE STRING,
RFC_OF_PAC TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
SELLOSAT_GUID TYPE STRING,
DIGEST_VAL_GUID TYPE STRING,
SIGN_VALUE_GUID TYPE STRING,
X509_CERT_GUID TYPE STRING,
SRNR_VALUE_GUID TYPE STRING,
X509_ISN_GUID TYPE STRING,
QR_GUID TYPE STRING,
LEGEND_GUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CFDI_RESP_MX_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_CFDI_RESP_MX_STR-MANDT sy-vline 
WA_CFDI_RESP_MX_STR-BUKRS sy-vline 
WA_CFDI_RESP_MX_STR-REFDOC sy-vline 
WA_CFDI_RESP_MX_STR-REFTYP sy-vline 
WA_CFDI_RESP_MX_STR-GJAHR sy-vline 
WA_CFDI_RESP_MX_STR-REFDOCDT sy-vline 
WA_CFDI_RESP_MX_STR-STATUS sy-vline 
WA_CFDI_RESP_MX_STR-CFDIRESPT sy-vline 
WA_CFDI_RESP_MX_STR-REJCODE sy-vline 
WA_CFDI_RESP_MX_STR-VERSION sy-vline 
WA_CFDI_RESP_MX_STR-UUID sy-vline 
WA_CFDI_RESP_MX_STR-SAT_CERTNO sy-vline 
WA_CFDI_RESP_MX_STR-FECHA_A sy-vline 
WA_CFDI_RESP_MX_STR-CODESTATUS sy-vline 
WA_CFDI_RESP_MX_STR-ESTATUSUUID sy-vline 
WA_CFDI_RESP_MX_STR-RFC_OF_PAC sy-vline 
WA_CFDI_RESP_MX_STR-ERNAM sy-vline 
WA_CFDI_RESP_MX_STR-ERDAT sy-vline 
WA_CFDI_RESP_MX_STR-AENAM sy-vline 
WA_CFDI_RESP_MX_STR-AEDAT sy-vline 
WA_CFDI_RESP_MX_STR-SELLOSAT_GUID sy-vline 
WA_CFDI_RESP_MX_STR-DIGEST_VAL_GUID sy-vline 
WA_CFDI_RESP_MX_STR-SIGN_VALUE_GUID sy-vline 
WA_CFDI_RESP_MX_STR-X509_CERT_GUID sy-vline 
WA_CFDI_RESP_MX_STR-SRNR_VALUE_GUID sy-vline 
WA_CFDI_RESP_MX_STR-X509_ISN_GUID sy-vline 
WA_CFDI_RESP_MX_STR-QR_GUID sy-vline 
WA_CFDI_RESP_MX_STR-LEGEND_GUID sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.